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Merge pull request #3129 from jesven/fix_same_prio

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修正相同优先级任务切换太频繁的问题
This commit is contained in:
Bernard Xiong
2019-11-12 22:47:18 +08:00
committed by GitHub
parent e8a864c7c8 e03ac83ad3
commit da7751c044
4 changed files with 22 additions and 2 deletions
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src/clock.c
+2
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@@ -89,6 +89,8 @@ void rt_tick_increase(void)
/* change to initialized tick */
thread->remaining_tick = thread->init_tick;
thread->stat |= RT_THREAD_STAT_YIELD;
/* yield */
rt_thread_yield();
}
src/scheduler.c
+15
View File
@@ -344,8 +344,13 @@ void rt_schedule(void)
{
to_thread = current_thread;
}
else if (current_thread->current_priority == highest_ready_priority && (current_thread->stat & RT_THREAD_STAT_YIELD_MASK) == 0)
{
to_thread = current_thread;
}
else
{
current_thread->stat &= ~RT_THREAD_STAT_YIELD_MASK;
rt_schedule_insert_thread(current_thread);
}
}
@@ -435,8 +440,13 @@ void rt_schedule(void)
{
to_thread = rt_current_thread;
}
else if (rt_current_thread->current_priority == highest_ready_priority && (rt_current_thread->stat & RT_THREAD_STAT_YIELD_MASK) == 0)
{
to_thread = rt_current_thread;
}
else
{
rt_current_thread->stat &= ~RT_THREAD_STAT_YIELD_MASK;
need_insert_from_thread = 1;
}
}
@@ -578,8 +588,13 @@ void rt_scheduler_do_irq_switch(void *context)
{
to_thread = current_thread;
}
else if (current_thread->current_priority == highest_ready_priority && (current_thread->stat & RT_THREAD_STAT_YIELD_MASK) == 0)
{
to_thread = current_thread;
}
else
{
current_thread->stat &= ~RT_THREAD_STAT_YIELD_MASK;
rt_schedule_insert_thread(current_thread);
}
}